Water → (3R,3aR,6aR)-6-(2-((5-([1,1'-biphenyl]-4-yl)-6-chloro-1H-imidazo[4,5-b]pyridin-2-yl)oxy)ethyl)hexahydrofuro[3,2-b]furan-3-ol

Participants

Reaction Steps

2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine (0.019 ml, 0.128 mmol) was added to a stirred mixture of 5-([1,1′-biphenyl]-4-yl)-6-chloro-2-(methylsulfonyl)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-imidazo[4,5-b]pyridine (52.6 mg, 0.102 mmol) and 2-((3aR,6R,6aS)-6-((tert-butyldimethylsilyl)-oxy)hexahydro-furo[3,2-b]furan-3-yl)ethanol (38.4 mg, 0.133 mmol) in DMF (1 ml) and the mixture was stirred at room temperature overnight. Water (20 mL) was added and the mixture was extracted with ethyl acetate (2×30 mL). The combined organic fractions were washed with brine (saturated, 20 mL), dried (Na2SO4), filtered and the solvent was evaporated under reduced pressure. The resulting residue was purified by preparative TLC, eluting with EtOAc/isohexane (1:1) to give the title compound. LC-MS: calculated for C38H52ClN3O5Si2 721.31 observed m/e: 722.39 (M+H)+ (Rt 1.58/2 min)

Provenance & Evidence